Wong, R. C., & Tse, H. Y. Drugs of abuse: Body fluid testing.
Lua i Stíl Chicago (17ú heag.)Wong, Raphael C., agus Harley Y. Tse. Drugs of Abuse: Body Fluid Testing.
Lua MLA (8ú heag.)Wong, Raphael C., agus Harley Y. Tse. Drugs of Abuse: Body Fluid Testing.
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